Point Forecast: Harrisburg PA  40.25N 76.87W (Elev. 99 m)	Last Update: 12:45 pm EDT Aug 9, 2025

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Weather Elements Fire Weather Aviation Weather Temperature (°C) Dewpoint (°C) Heat Index (°C) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s 20ft Wind  ktmphkm/hm/s Vent Rate (x1000 mph-m) Davis Stability Index Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Ceiling Height Visibility Thunder Potential

48-Hour Period Starting: 5pm Sat, Aug 9 20256pm Sat, Aug 9 20257pm Sat, Aug 9 20258pm Sat, Aug 9 20259pm Sat, Aug 9 202510pm Sat, Aug 9 202511pm Sat, Aug 9 202512am Sun, Aug 10 20251am Sun, Aug 10 20252am Sun, Aug 10 20253am Sun, Aug 10 20254am Sun, Aug 10 20255am Sun, Aug 10 20256am Sun, Aug 10 20257am Sun, Aug 10 20258am Sun, Aug 10 20259am Sun, Aug 10 202510am Sun, Aug 10 202511am Sun, Aug 10 202512pm Sun, Aug 10 20251pm Sun, Aug 10 20252pm Sun, Aug 10 20253pm Sun, Aug 10 20254pm Sun, Aug 10 20255pm Sun, Aug 10 20256pm Sun, Aug 10 20257pm Sun, Aug 10 20258pm Sun, Aug 10 20259pm Sun, Aug 10 202510pm Sun, Aug 10 202511pm Sun, Aug 10 202512am Mon, Aug 11 20251am Mon, Aug 11 20252am Mon, Aug 11 20253am Mon, Aug 11 20254am Mon, Aug 11 20255am Mon, Aug 11 20256am Mon, Aug 11 20257am Mon, Aug 11 20258am Mon, Aug 11 20259am Mon, Aug 11 202510am Mon, Aug 11 202511am Mon, Aug 11 202512pm Mon, Aug 11 20251pm Mon, Aug 11 20252pm Mon, Aug 11 20253pm Mon, Aug 11 20254pm Mon, Aug 11 20255pm Mon, Aug 11 20256pm Mon, Aug 11 20257pm Mon, Aug 11 20258pm Mon, Aug 11 20259pm Mon, Aug 11 202510pm Mon, Aug 11 202511pm Mon, Aug 11 202512am Tue, Aug 12 20251am Tue, Aug 12 20252am Tue, Aug 12 20253am Tue, Aug 12 20254am Tue, Aug 12 20255am Tue, Aug 12 20256am Tue, Aug 12 20257am Tue, Aug 12 20258am Tue, Aug 12 20259am Tue, Aug 12 202510am Tue, Aug 12 202511am Tue, Aug 12 202512pm Tue, Aug 12 20251pm Tue, Aug 12 20252pm Tue, Aug 12 20253pm Tue, Aug 12 20254pm Tue, Aug 12 20255pm Tue, Aug 12 20256pm Tue, Aug 12 20257pm Tue, Aug 12 20258pm Tue, Aug 12 20259pm Tue, Aug 12 202510pm Tue, Aug 12 202511pm Tue, Aug 12 202512am Wed, Aug 13 20251am Wed, Aug 13 20252am Wed, Aug 13 20253am Wed, Aug 13 20254am Wed, Aug 13 20255am Wed, Aug 13 20256am Wed, Aug 13 20257am Wed, Aug 13 20258am Wed, Aug 13 20259am Wed, Aug 13 202510am Wed, Aug 13 202511am Wed, Aug 13 202512pm Wed, Aug 13 20251pm Wed, Aug 13 20252pm Wed, Aug 13 20253pm Wed, Aug 13 20254pm Wed, Aug 13 20255pm Wed, Aug 13 20256pm Wed, Aug 13 20257pm Wed, Aug 13 20258pm Wed, Aug 13 20259pm Wed, Aug 13 202510pm Wed, Aug 13 202511pm Wed, Aug 13 202512am Thu, Aug 14 20251am Thu, Aug 14 20252am Thu, Aug 14 20253am Thu, Aug 14 20254am Thu, Aug 14 2025

Date	08/09							08/10
Hour (EDT)	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16
Temperature (°C)	28	28	27	25	23	22	21	19	18	17	17	16	15	14	16	17	21	24	26	28	29	30	31	31
Dewpoint (°C)	14	14	14	14	15	14	14	14	14	13	14	13	13	13	13	14	14	15	15	14	14	14	14	14
Heat Index (°C)	28	28	27	25														24	26	28	29	29	30	30
Surface Wind (mph)	3	3	2	2	2	1	1	1	0	1	0	0	0	0	0	0	0	1	1	2	2	3	5	5
Wind Dir	SE	SE	SE	SE	SE	SE	S	E	N	E	N	N	N	N	N	N	N	S	S	S	S	SE	SE	SE
Gust
Sky Cover (%)	3	2	1	0	1	2	3	3	3	3	5	7	9	10	12	14	12	10	8	8	8	8	10	6
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	43	44	47	52	59	62	65	72	75	78	85	87	88	93	88	84	66	58	50	44	40	37	38	38
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date								08/11
Hour (EDT)	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16
Temperature (°C)	30	29	28	26	24	23	22	21	19	18	18	17	16	16	17	18	21	24	27	28	29	30	31	31
Dewpoint (°C)	14	15	16	16	16	16	16	15	14	14	14	14	14	14	14	15	16	16	16	16	16	16	16	16
Heat Index (°C)	29	29	28	26	24													24	27	28	29	30	31	31
Surface Wind (mph)	5	5	3	3	2	2	2	2	1	1	1	0	0	0	0	0	1	1	2	3	3	5	6	6
Wind Dir	SE	SE	SE	SE	SE	S	S	S	S	S	S	S	N	N	N	N	S	S	S	S	S	S	S	S
Gust
Sky Cover (%)	4	5	6	5	5	5	5	4	2	1	2	4	5	7	10	12	10	8	6	6	6	6	6	6
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	39	41	46	54	59	65	68	70	73	75	79	82	86	93	85	80	70	59	52	47	45	43	40	40
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

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